The hormone oxytocin — known as the “love drug” or “cuddle chemical” — plays an important role in pair-bonding, child-rearing and social behavior. Now researchers are discovering that it could also help explain the effects of …

One night in 2006, Kathy Roberts rushed her autistic daughter, Jenny, to the hospital. Nothing had been able to stop the young woman, then in her mid-20s, from vomiting. Jenny had recently suffered several major seizures and her …